public async Task HttpClient_ClientUsesAuxRecord_Ok()
{
var options = new HttpsTestServer.Options();
options.AllowedProtocols = SslProtocols.Tls;
using (var server = new HttpsTestServer(options))
using (HttpClientHandler handler = CreateHttpClientHandler())
using (HttpClient client = CreateHttpClient(handler))
{
handler.ServerCertificateCustomValidationCallback = TestHelper.AllowAllCertificates;
server.Start();
var tasks = new Task[2];
bool serverAuxRecordDetected = false;
bool serverAuxRecordDetectedInconclusive = false;
int serverTotalBytesReceived = 0;
int serverChunks = 0;
CircularBuffer buffer = new CircularBuffer(4);
tasks[0] = server.AcceptHttpsClientAsync((requestString) =>
{
buffer.Add(requestString);
serverTotalBytesReceived += requestString.Length;
if (serverTotalBytesReceived == 1 && serverChunks == 0)
{
serverAuxRecordDetected = true;
}
serverChunks++;
// Test is inconclusive if any non-CBC cipher is used:
if (server.Stream.CipherAlgorithm == CipherAlgorithmType.None ||
server.Stream.CipherAlgorithm == CipherAlgorithmType.Null ||
server.Stream.CipherAlgorithm == CipherAlgorithmType.Rc4)
{
serverAuxRecordDetectedInconclusive = true;
}
// Detect end of HTML request
if (buffer.Equals("\r\n\r\n"))
{
return(Task.FromResult(HttpsTestServer.Options.DefaultResponseString));
}
else
{
return(Task.FromResult <string>(null));
}
});
string requestUriString = "https://localhost:" + server.Port.ToString();
tasks[1] = client.GetStringAsync(requestUriString);
await tasks.WhenAllOrAnyFailed(15 * 1000);
if (serverAuxRecordDetectedInconclusive)
{
_output.WriteLine("Test inconclusive: The Operating system preferred a non-CBC or Null cipher.");
}
else
{
Assert.True(serverAuxRecordDetected, "Server reports: Client auxiliary record not detected.");
}
}
}
